Here is way to check if your PAN is active or not

Minister of State for Finance Santosh Kumar Gangwar in a written reply informed the Rajya Sabha that as on July 27, 11,44,211 PANs have been identified and deleted or de-activated
in cases where multiple PANs were found allotted to one person.

A person cannot hold more than one PAN. A penalty of Rs. 10,000 is liable to be imposed under section 272B of the Income-tax Act, 1961 for having more than one PAN.

If a person has been allotted more than one PAN then he should immediately surrender the additional PAN card(s).